Guaty, whose credits include Prison Break and Las Vegas, will play Caitlin, a woman from Professor Shane's (David Alpay) past. Shane has been helping Bonnie (Kat Graham) to relearn her magic, but he might be bad news, considering it was he who sent vampire hunter Connor (Todd Williams) to Mystic Falls.

Meanwhile, Bewley, who portrayed vampire Demetri in the Twilightfilms, will play Vaughn. Details about his role — other than he's tough and rugged — are being kept under wraps, but considering Klaus (Joseph Morgan) & Co. are in search of the vampire hunters, we're guessing (and hoping!) he'll be one of The Five they've been seeking.

Both actors will first appear in Episode 13, with the potential to return for more. Do you think the new additions are good or bad news?